Find and compare 90309 international and local trade shows. World's #1 directory of largest B2B tradeshows, major expos, exhibitions and trade fairs. Used by over 2 million event goers worldwide to read reviews, bookmark upcoming dates, find popular trade shows to attend, exhibit by country, location, city, category & industry around the world in 2017, 2018, 2019 & 2020.
Square is a parallelogram with right angles and equal sides (Fig.35). A square is a particular case of a rectangle and a rhombus simultaneously; so, it has all their above mentioned properties. Trapezoid is a quadrangle, two opposite sides of which are parallel (Fig.36).
A parallelogram is a four-sided shape in which the opposite sides  are parallel.   A â¦ rectangle (and a square) is a four-sided shape in which the  opposite sides are parallel and all corners are 90 degrees. The  corners of a parallelogram can be 90 degrees but can also be  different angles. Therefore, rectangles and squares are subsets of  a parallelogram. 25 people found this useful.